Quoted from IEBlog:
http://blogs.msdn.com/ie/archive/2006/11/30/ie6-and-ie7-running-on-a-single-
machine.aspx#1186820
This “solution” shows the utter lack of talent at Microsoft. An application
shouldn’t be so ingrained into an operating system that an entire virtual
environment is needed to use different versions. I used to believe it was a
pain testing web applications for quirks in IE6, Mozilla, Opera, Safari, etc,
but now, thanks to the dolts at MS, I have to run a virtual environment in
addition to my normal rounds of testing, and I guess I can forget about
supporting IE6 users after April 1st. Because the Software Engineers at
Microsoft are clearly lacking in their ability to produce a well written
operating system, I’ve provided a diagram below to prevent mistakes like this
from happening again, courtesy of my undergraduate OS class:
...